August weather forecast and climate
Rethimno, Greece

Dusk in the Venetian Rethimno harbor in Greece
Dusk in the Venetian Rethimno harbor in Greece
The last month of the summer, August, is also a moderately hot month in Rethimno, Greece, with average temperature fluctuating between 29°C (84.2°F) and 21°C (69.8°F).
The ideal sea water temperature of 25.9°C (78.6°F) and 1mm (0.04") of accumulated rainfall makes August the best time for swimming and other water activities.

Temperature

In August, the average high-temperature is essentially the same as in July - a moderately hot 29°C (84.2°F). In Rethimno, in August, the average low-temperature is 21°C (69.8°F).

Rainfall

July and August are months with the least rain when 1mm (0.04") of rain is typically aggregated.

Sea temperature

The month with the warmest seawater is August, with an average sea temperature of 25.9°C (78.6°F).
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

In Rethimno, the average length of the day is 13.5h.

Sunshine

June through August, with an average of 12h of sunshine, are months with the most sunshine in Rethimno, Greece.

UV index

In Rethimno, the average daily maximum UV index in August is 9. A UV Index estimate of 8 to 10 represents a very high threat to health from the exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 9 in August interpret into the following advice:
Take special precautions, as unprotected eyes and skin can be burned and damaged quickly. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the temperature in August in Rethimno?

In Rethimno, Greece, in August, the average high-temperature is 29°C (84.2°F), and the average low-temperature is 21°C (69.8°F).

How much does it rain in Rethimno in August?

During August, Rethimno regularly aggregates up to 1mm (0.04") of precipitation.

What is the driest month in Rethimno?

Months with the least rainfall are July and August with 1mm (0.04") of accumulated rain.

When is the sea warmest in Rethimno?

August is the month with the warmest seawater in Rethimno, with an average sea temperature of 25.9°C (78.6°F).

What is the water temperature in August in Rethimno?

In Rethimno, Greece, in August, the average water temperature is 25.9°C (78.6°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

How many hours of daylight does Rethimno have in August?

In August, the average length of the day in Rethimno is 13.5h.

What is the month with the most sunshine in Rethimno?

June through August, with an average of 12h of sunshine, are months with the most sunshine in Rethimno, Greece.

How many hours of sunshine does Rethimno have in August?

In August, the average sunshine is 12h.

What is the UV index reading in August in Rethimno?

In Rethimno, the average daily maximum UV index in August is 9. A UV Index value of 8 to 10 symbolizes a very high health threat from the exposure to the Sun's UV rays.
Average temperature in August - Rethimno, Greece
  • Average high temperature in August: 29°C

The warmest month (with the highest average high temperature) is July (30°C).
The month with the lowest average high temperature is January (14°C).

  • Average low temperature in August: 21°C

Months with the highest average low temperature are July and August (21°C).
The coldest months (with the lowest average low temperature) are January and February (8°C).

Average rainfall in August - Rethimno, Greece
  • Average rainfall in August: 1mm

The wettest month (with the highest rainfall) is January (142mm).
The driest months (with the least rainfall) are July and August (1mm).

Average rainfall days in August - Rethimno, Greece
  • Average rainfall days in August: 0 days

The month with the highest number of rainy days is December (13 days).
Months with the least rainy days are July and August (0 days).

Average sea temperature in August - Rethimno, Greece
  • Average sea temperature in August: 25.9°C

The best month for swimming (with the highest average sea temperature) is August (25.9°C).
The coldest month (with the lowest average sea temperature) is February (16.1°C).

Average daylight in August / Average sunshine in August - Rethimno, Greece
  • Average daylight in August: 13.5h

The month with the longest days is June (Average daylight: 14.5h).
The month with the shortest days is December (Average daylight: 9.8h).

  • Average sunshine in August: 12h

Months with the most sunshine are June, July and August (Average sunshine: 12h).
Months with the least sunshine are January and December (Average sunshine: 4).

Average UV index in August - Rethimno, Greece
  • Average UV index in August: 9

Months with the highest UV index are June and July (UV index 10).
Months with the lowest UV index are January and December (UV index 2).